WO2020147431A1 - Ensemble brosses de plancher et aspirateur - Google Patents

Ensemble brosses de plancher et aspirateur Download PDF

Info

Publication number
WO2020147431A1
WO2020147431A1 PCT/CN2019/121511 CN2019121511W WO2020147431A1 WO 2020147431 A1 WO2020147431 A1 WO 2020147431A1 CN 2019121511 W CN2019121511 W CN 2019121511W WO 2020147431 A1 WO2020147431 A1 WO 2020147431A1
Authority
WO
WIPO (PCT)
Prior art keywords
working state
cleaned
brush
distance
support wheel
Prior art date
Application number
PCT/CN2019/121511
Other languages
English (en)
Chinese (zh)
Inventor
刘海平
于宇
顾德志
薛烨炜
Original Assignee
天佑电器（苏州）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 天佑电器（苏州）有限公司 filed Critical 天佑电器（苏州）有限公司
Publication of WO2020147431A1 publication Critical patent/WO2020147431A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls

Definitions

  • the invention relates to a floor brush assembly, in particular to a floor brush assembly with double roller brushes.
  • the present invention also relates to a vacuum cleaner including the above-mentioned floor brush assembly.
  • the common double-rolling brush floor brushes on the market often do not have a specific adjustment for changes in the working environment (floor/carpet) to achieve a better dust absorption effect.
  • the double-roller brush is relatively single-roller structure, and the floor brush roller has a higher load when the carpet is working.
  • the conventional method is to increase the motor model to provide higher torque, which makes their floor brushes have certain limitations and cause costs. rise.
  • the technical problem to be solved by the present invention is to provide a floor brush assembly and a vacuum cleaner with the ground clearance of the rear roller brush basically unchanged when working in different working environments.
  • the present invention discloses a floor brush assembly, which includes a floor brush body on which a front support wheel, a front roller brush, a rear roller brush and a rear support wheel are sequentially arranged from front to back;
  • the floor brush assembly is configured to have a first working state and a second working state adapted to different surfaces to be cleaned; in the first working state, the front supporting wheel and the rear supporting wheel in a high position are supported by the first working state to be cleaned In the second working state, the front support wheel sinks into the second surface to be cleaned, and the rear supporting wheel in the low position is supported on the surface of the second surface to be cleaned;
  • the distance between the rear roller brush and the surface of the first surface to be cleaned and the distance between the rear roller brush and the surface of the second surface to be cleaned in the second working state the difference between the two is not greater than One fifty-fifth of the radius of the back rolling brush.
  • the distance between the rear roller brush and the surface of the first surface to be cleaned in the first working state is the same as the distance between the rear roller brush and the first surface in the second working state.
  • the distance between the surface of the surface to be cleaned, and the difference between the two is not more than one hundredth of the radius of the rear roller brush.
  • the distance between the rear roller brush and the surface of the first surface to be cleaned in the first working state is the same as the distance between the rear roller brush and the first surface in the second working state.
  • the distance between the surfaces of the two surfaces to be cleaned, and the difference between the two is not more than one-150th of the radius of the rear roller brush.
  • the distance between the rear roller brush and the surface of the first surface to be cleaned in the first working state is the same as the distance between the rear roller brush and the first surface in the second working state.
  • the distance between the surface of the surface to be cleaned, and the difference between the two is not more than one hundredth of the radius of the rear roller brush.
  • the surface of the first surface to be cleaned is tangent to the front support wheel and the rear support wheel, respectively.
  • the distance between the lowest point of the front roller brush and the surface of the first surface to be cleaned is greater than that of the rear roller brush. The distance between the lowest point and the surface of the first surface to be cleaned.
  • the width of the front support wheel is smaller than the width of the rear support wheel.
  • the present invention also discloses a floor brush assembly, including a floor brush body on which a front support wheel, a front rolling brush, a rear rolling brush, and a rear support wheel are sequentially arranged from front to back; the floor brush assembly structure In order to have a first working state and a second working state adapted to different surfaces to be cleaned; in the first working state, the front supporting wheel and the rear supporting wheel in a high position are supported on the surface of the first surface to be cleaned, There is a lowest point Ph on the rear roller; in the second working state, the front support wheel sinks into the second surface to be cleaned, and the rear support wheel in the low position is supported on the surface of the second surface to be cleaned. There is a lowest point Ps on the rear roller brush; the distance between the point Ph and the point Ps is not greater than the radius of the rear roller brush.
  • the distance between the point Ph and the point Ps is not greater than half of the radius of the rear roller brush.
  • the distance between the point Ph and the point Ps is not greater than one quarter of the radius of the rear rolling brush.
  • the distance between the point Ph and the point Ps is not greater than one-eighth of the radius of the rear rolling brush.
  • the distance between the point Ph and the point Ps is not greater than one tenth of the radius of the rear rolling brush.
  • the present invention also discloses a floor brush assembly, which includes a floor brush body on which a front support wheel, a front roller brush, a rear roller brush and a rear support wheel are sequentially arranged from front to back; the feature is that the The floor brush assembly is configured to have a first working state and a second working state adapted to different surfaces to be cleaned; in the first working state, the front support wheel and the rear support wheel in a high position are supported on the first surface to be cleaned On the surface of the rear roller brush, there is the lowest point Ph; in the second working state, the front support wheel sinks into the second surface to be cleaned, and the rear support wheel in the low position is supported on the second surface to be cleaned Project the side surface of the floor brush assembly onto a reference plane to make a first reference line and a second reference line, the first reference line and the second reference line are compared to the point Pi, The point Pi is the vertical line L of the first reference line hh, and the distance from the point Ph to the vertical line L is not greater than the radius of the rear roller
  • the distance from the point Ph to the vertical line L is not greater than half of the radius of the back rolling brush.
  • the distance from the point Ph to the vertical line L is not more than one-fifth of the radius of the rear rolling brush.
  • the distance from the point Ph to the vertical line L is zero.
  • the present invention also discloses a floor brush assembly, which includes a floor brush body on which a front support wheel, a front roller brush, a rear roller brush and a rear support wheel are sequentially arranged from front to back; the feature is that the The floor brush assembly is configured to have a first working state and a second working state adapted to different surfaces to be cleaned; in the first working state, the front support wheel and the rear support wheel in a high position are supported on the first surface to be cleaned In the second working state, the front support wheel sinks into the second surface to be cleaned, and the rear support wheel in the low position is supported on the surface of the second surface to be cleaned; the floor brush assembly The side is projected onto the reference plane, and a first reference line and a second reference line are made.
  • the first reference line and the second reference line intersect at a point Pi;
  • the vertical line L is the vertical line T of the first reference line through the rotation axis of the rear rolling brush; the distance between the vertical line L and the vertical line T is not greater than the radius of the rear rolling brush; wherein, the The first reference line is the projection of the first surface to be cleaned on the reference plane in the first working state, and the second reference line is the projection of the second surface to be cleaned in the second working state.
  • the projection on the reference plane is the projection of the first surface to be cleaned on the reference plane in the first working state
  • the second reference line is the projection of the second surface to be cleaned in the second working state.
  • the distance between the vertical line L and the vertical line T is not greater than half of the radius of the rear rolling brush.
  • the distance between the vertical line L and the vertical line T is not more than one-fifth of the radius of the rear rolling brush.
  • the distance between the vertical line L and the vertical line T is zero.
  • the invention also discloses a vacuum cleaner comprising the above-mentioned floor brush assembly
  • Using the floor brush assembly and vacuum cleaner of the technical scheme of the present invention can ensure that the load of the rear roller brush is basically unchanged when cleaning hard floors and soft floors, which not only reduces the motor cost of the rear roller brush, but also ensures the suction port Air tightness nearby.
  • Fig. 1 is a schematic diagram of the floor brush assembly in the first embodiment of the present invention, wherein the floor brush assembly is in the first working state.
  • Figure 2 is a schematic diagram of the floor brush assembly in the first embodiment of the present invention, in which the wheel of the floor brush assembly is in a second working state.
  • Fig. 3 is an exploded view of the floor brush assembly in the second embodiment of the present invention.
  • Figure 4 is a bottom view of the floor brush assembly in the second embodiment of the present invention.
  • Fig. 5 is a cross-sectional view of the floor brush assembly in the second embodiment of the present invention along A-A in Fig. 4, where a is the floor brush assembly in the first working state, and b is the floor brush assembly in the second working state.
  • Fig. 6 is a cross-sectional view of the floor brush assembly along A-A in Fig. 4 in the second embodiment of the present invention, in which the floor brush assembly is superimposed and shown in the first working state and the second working state.
  • Fig. 7 is a cross-sectional view of the floor brush assembly along B-B in Fig. 4 in the second embodiment of the present invention.
  • Fig. 8 is a schematic diagram of a rear support wheel assembly in a second embodiment of the present invention.
  • Fig. 9 is a cross-sectional view of the rear support wheel assembly along C-C in Fig. 8 in the second embodiment of the present invention.
  • Fig. 10 is a schematic diagram of the floor brush assembly in the third embodiment of the present invention.
  • Figure 11 is a top view of the floor brush assembly in the third embodiment of the present invention.
  • Fig. 12 is an exploded view of the height adjuster of the rear support wheel of the floor brush assembly in the third embodiment of the present invention.
  • Fig. 13 is a cross-sectional view taken along C-C in Fig. 11, in which the rear support wheel is maintained in a high position.
  • Fig. 14 is a cross-sectional view along C-C in Fig. 11, in which the rear support wheel is maintained in a high position.
  • Fig. 15 is a cross-sectional view along C-C in Fig. 11, in which the rear support wheel is in a low position.
  • Fig. 16 is a cross-sectional view along C-C in Fig. 11, in which the rear support wheel is in a low position.
  • Figure 17 is a cross-sectional view taken along C-C in Figure 11, in which the rear support wheel is in a high position.
  • Figure 18 is a cross-sectional view along C-C in Figure 11, in which the rear support wheel is in a high position.
  • G-side to be cleaned Gh-hard surface, Gs-soft surface,
  • 9-Floor brush assembly 902-Floor brush body, 9022-Upper shell, 9024-Lower shell, 9024a-First side support, 9024b-Second side support, 9024c-Slot, 9021-Floor brush body Bottom, 904-connector, 906-suction, 92-front support wheel, 940-rear support wheel assembly, 94-rear support wheel, 9402-rear support axle,
  • 760-connecting rod 760a-connecting rod horizontal part, 760b-connecting rod longitudinal part, 762-first side fitting, 7622-first side mounting hole, 7624-first side fitting convex part, 764-second side Fitting piece, 7642-second side mounting hole, 7644-second side fitting convex part, 78-slider, 782-slider bottom, 784-slider longitudinal part, 7842-slope slope, 7844-slider recess , 7846- upper end of the slider,
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features.
  • the second feature is not in direct contact but through another feature between them.
  • the first embodiment of the present invention discloses a floor brush assembly 9 that includes a floor brush body 902, which includes a front support wheel 92, a front roller brush 96, and a rear roller brush 98 that are sequentially arranged from front to back. And rear support wheels 94.
  • the radius of the front support wheel 92 is r 2
  • the radius of the front roller brush 96 is r 6
  • the radius of the rear roller brush 98 is r 8
  • the radius of the rear support wheel is r 4 .
  • the floor brush assembly 9 is configured to have a first working state and a second working state adapted to different surfaces G to be cleaned.
  • the floor brush assembly 9 is supported on a hard surface Gh.
  • the front support wheel 92 and the rear support wheel 94h are supported on the surface of the hard surface Gh, that is, the surface of the hard surface Gh is respectively on the front support wheel 92 and the rear support wheel 94h.
  • Tangent; the distance between the lowest point of the front roller brush 96 and the surface of the hard surface Gh is d 61 ; the distance between the lowest point of the rear roller brush 98 and the surface of the hard surface Gh
  • the distance is d 81 ; where d 61 > d 81 , and d 81 can be positive, zero or negative.
  • the distance between the roller brush and the ground is positive, which means that the distance from the roller brush rotation axis to the ground is greater than the radius of the roller brush; the distance between the roller brush and the ground is zero, which means that the distance from the roller brush shaft rotation axis to the ground is equal to the radius of the roller brush;
  • the distance between the rolling brush and the ground is a negative number, which means that the distance from the rotation axis of the rolling brush to the ground is less than the radius of the rolling brush, and the bristles of the rolling brush are bent under force.
  • d 81 is usually zero or a negative number.
  • the radius of the rolling brush refers to the maximum radius of the entire rolling brush when the bristles of the rolling brush are not bent under force.
  • the hard surface Gh means that when the floor brush assembly 9 is supported on it, the hard surface Gh will not undergo significant deformation, such as wooden floor, concrete floor, tile/slate paving floor, epoxy floor , Solid and level soil ground, etc.
  • FIG. 2 shows the hard surface Gh and the rear support wheel 94h supported on the hard surface Gh in the first working state in dotted lines.
  • the floor brush assembly 9 is supported on a soft surface Gs.
  • the front support wheel 92 has a relatively small width, it is at least partially trapped in the soft surface Gs; the rear support wheel 94s has a relatively large width, so it is supported on the
  • the soft surface Gs basically does not sink into the soft surface Gs when it is on, that is, the surface of the soft surface Gs is tangent to the rear support wheel 94s, and is below the floor brush body 902 with the
  • the front supporting wheel 92 intersects; the distance between the lowest point of the front rolling brush 96 and the surface of the soft surface Gs is d 62 , the lowest point of the rear rolling brush 98 and the surface of the soft surface Gs The minimum distance between is d 82 , where d 62 is a negative number.
  • the soft surface Gs When the soft surface Gs is supported by the floor brush assembly 9 on it, the soft surface Gs will sag significantly, such as carpeted floors, soft bedding surfaces and the like.
  • the surface of the soft surface Gs refers to the surface of the soft surface Gs that is not deformed by force.
  • Fig. 1 shows the soft surface Gs and the rear support wheel 94s supported on the soft surface Gs in the second working state in dotted lines.
  • the rear support wheel 94 is configured to be movable in a direction perpendicular to the surface G to be cleaned. As shown in FIGS. 1 and 2, the rear support wheel 94 has a high position and a low position. Specifically, when the rear support wheel 94 is in the high position, the floor brush assembly 9 is in the first working state; when the rear support wheel 94 is in the low position, the floor brush assembly 9 is in the The second working state.
  • the side surface of the floor brush assembly 9 is projected on a reference plane (ie, the paper surface), and the first support wheel 92 and the rear support wheel 94h in the high position are made.
  • a reference line hh, the first reference line hh is the outer common tangent of the front support wheel 92 and the rear support wheel 94h in the high position, and the first reference line hh is the hard surface Gh .
  • the second reference line ss of the rear support wheel 94s in the low position in the same projection, and make it meet the following conditions: the second reference line ss is separate from the front support wheel 92 and the rear roller brush 96 Intersect, the arc height of the arc on the front support wheel 96 below the second reference line is equal to the absolute value of d 62 , and the second reference line ss is tangent to the rear support wheel 94s in the low state, the second reference The line ss is the soft surface Gs.
  • the floating value H of the height of the floor brush body 902 relative to the surface G to be cleaned is equal to the absolute value of H h -H s .
  • H h -H s the floating value of the height of the floor brush body 902 relative to the surface G to be cleaned.
  • m Preferably, m ⁇ r 8 ; more preferably, More preferably, More preferably, More preferably, More preferably, In the first embodiment,
  • the first reference line hh and the second reference line ss intersect at a point Pi, and the vertical line L of the first reference line hh is formed through the point Pi, and the distance from the point Ph to the vertical line L is defined as n.
  • the first reference line hh and the second reference line ss intersect at a point Pi
  • the point Pi is taken as the vertical line L of the first reference line hh
  • the rotation axis of the rear roller brush 98 is taken as the first
  • the vertical line T of the reference line hh defines the distance between the vertical line L and the vertical line T as q.
  • q 0.
  • the bottom surface of the floor brush body 902 is provided with suction ports, and the suction ports are arranged near the front rolling brush 96 and the rear rolling brush 98.
  • the suction port is arranged between the front rolling brush 96 and the rear rolling brush 98.
  • the floor brush assembly 9 further includes a connecting body 904 extending upward from the floor brush body 902. The connecting body 904 is used to connect with parts of the vacuum cleaner, such as a hose and an extension rod, so that the vacuum generator in the vacuum cleaner is connected with the suction fluid.
  • the second embodiment of the present invention discloses a floor brush assembly 9, as shown in FIGS. 3-9. To simplify the description and facilitate understanding, only the parts of this embodiment that are different from the above-mentioned first embodiment will be described below.
  • the bristles of the front roller brush 96 are configured as hard long hairs, which are suitable for extending into the carpet in the second working state, for example, to roll up and suck off the dirt hidden in the carpet fluff.
  • the forward rolling brush 96 is configured to leave the hard ground so as not to cause damage to the hard ground.
  • the bristles of the rear roller brush 98 are constructed as soft fluff, which is suitable for cleaning hard ground in the first working state.
  • the floor brush assembly 9 includes a rear support wheel assembly 940, and the rear support wheel assembly 940 includes a rear support wheel 94 and a height adjuster 942 connected to the rear support wheel 94.
  • the height adjuster 942 is configured as an eccentric device 9422, and the eccentric device 9422 is fixedly connected to an end of the rear support wheel shaft 9402 away from the rear support wheel 94, and the rear support wheel 94
  • the rotation axis xx and the rotation axis yy of the eccentric device 9422 are parallel and not collinear.
  • the eccentric device 9422 is configured as a cylinder, and the rear support axle 9402 is fixedly connected to one end surface of the cylinder.
  • the floor brush body 902 is provided with a limiting portion 9424 for accommodating the eccentric device 9422, and the limiting portion 9424 includes a diameter that matches the eccentric device 9422 and has a circular shape. In a cavity with an arc-shaped wall, the eccentric device 9422 is restricted from rotating within the cavity.
  • the third embodiment of the present invention discloses a floor brush assembly 9, as shown in FIGS. 10-18.
  • the floor brush assembly 9 includes a floor brush body 902 formed by buckling an upper shell 9022 and a lower shell 9024.
  • the floor brush body 902 includes a front support wheel 92 and a front roller which are arranged in sequence from front to rear.
  • the front support wheel 92, the front roller brush 96, and the rear roller brush 98 are basically the same as in the foregoing second embodiment, so they will not be repeated in this embodiment, and they are also not shown in FIGS. 10 to 18 Out.
  • the floor brush assembly 9 further includes a connecting body 904 extending upward (up) from the floor brush body 902, and the connecting body 904 is approximately located in the middle of the rear of the floor brush body 902.
  • the floor brush body 902 extends rearwardly from a first side portion 72 and a second side portion 74 from its rear portion.
  • the first side 72 and the second side 74 are respectively located on the left and right sides of the connecting body 904.
  • the first side portion 72 is located on the left side of the connecting body 904
  • the second side portion 74 is located on the right side of the connecting body 904.
  • the rear support wheel 94 on the left is provided on the first side 72
  • the rear support wheel 94 on the right is provided on the second side 74.
  • the floor brush assembly 9 further includes a height adjuster 942 connected to the rear support wheel 94.
  • the height adjuster 942 includes a first side fitting piece 762, a second side fitting piece 764 and a connecting rod 760.
  • the first side fitting piece 762 is located in the housing of the first side portion 72, and the second side fitting piece 764 is located on the second side. ⁇ 74 inside the housing.
  • the connecting rod 760 is roughly U-shaped, with a connecting rod transverse portion 760a and a connecting rod longitudinal portion 760b arranged substantially in parallel, wherein the connecting rod longitudinal portion 760b extends rearward from both ends of the connecting rod transverse portion 760a, and two connecting rod longitudinal portions
  • the free end of the rear part of 760b is fixedly connected to the first side fitting piece 762 and the second side fitting piece 764 respectively.
  • the first side fitting piece 762 and the second side fitting piece 764 are connected together by a connecting rod 760.
  • the connecting rod 760 is driven to rotate around the connecting rod cross portion 760a, thereby driving one of the two Another sport.
  • the first side fitting 762 includes a first side mounting hole 7622, and the rear support wheel shaft 9402 of the left rear support wheel 94 is matched and fixed with the first side mounting hole 7622.
  • the first side fitting 762 further includes a first side fitting protrusion 7624 extending backward. In this embodiment, the end of the convex portion 7624 of the first side fitting member is completely upward.
  • the second side fitting 764 includes a second side mounting hole 7642, and the rear support axle 9402 of the rear support wheel 94 on the right side is matched and fixed with the second side mounting hole 9642.
  • the second side fitting 764 further includes a second side fitting protrusion 7644 extending from the rear.
  • the end of the convex portion 7644 of the second side fitting member is bent downward and forms an arc surface on the upper surface thereof.
  • the height adjuster 942 further includes a first side operating key 722 that cooperates with the first side fitting 762, a slider 78, a lateral spring 52 and a longitudinal spring 54a.
  • the first side operating key 722 is pivotally connected to the upper housing 9022 through the operating key connecting shaft 722a, and the first side operating key 722 is at least partially exposed outside the housing of the floor brush body 902 for easy operation.
  • the lower surface of the first side operation key 722 has a first operation key slope 7222, and the first operation key slope 7222 substantially extends from the upper front to the lower rear.
  • the slider 78 includes a slider bottom 782 and a slider longitudinal portion 784, wherein the slider bottom 782 and the slider longitudinal portion 784 are substantially at right angles, and the slider longitudinal portion 784 extends upward from the rear end of the slider bottom 782.
  • the slider longitudinal portion 784 has a slider upper end 7846 and a slider inclined surface 7842.
  • the slider inclined surface 7842 extends from the upper end of the slider 7846 toward the front and downward and protrudes forward of the slider longitudinal portion 784, and is formed below the slider inclined surface 7842 Slider recess 7844.
  • a first side support 9024a and a sliding groove 9024c are formed at the first side 72 of the lower housing 9024, and the first side support 9024a and the support at corresponding positions on the upper housing 9022 are formed at the first side.
  • the elongated hole on the outer side surface (ie, the left side surface thereof) of 72 is used to restrain the first side fitting member 762 from pivoting therein and moving in a substantially vertical direction.
  • the sliding groove 9024c is used for accommodating the bottom 782 of the slider so that the bottom 782 of the slider can move in the front and rear directions.
  • the transverse spring 52 is arranged between the sliding block 78 and the rear wall of the sliding groove 9024c, so that the sliding block 78 has a forward movement tendency.
  • the longitudinal spring 54a is arranged between the first side fitting 762 and the bottom wall of the lower housing 9024, so that the first side fitting 762 has a tendency to move upwards, even if the connecting rod 760 has a tendency to rotate upwards around the connecting rod transverse portion 760a .
  • the height adjuster 942 further includes a second side operating key 742 and a longitudinal spring 54b that cooperate with the second side fitting 764.
  • the second side operating key 742 is pivotally connected to the upper housing 9022 through the operating key connecting shaft 742a, and the second side operating key 742 is at least partially exposed outside the housing of the floor brush body 902 for easy operation.
  • the lower surface of the second side operation key 742 has a second operation key slope 7422, and the second operation key slope 7422 substantially extends from the upper front to the lower rear.
  • a second side support 9024b is formed at the second side 74 of the lower housing 9024, and the second support 9024b and the support at the corresponding position on the upper housing 9022 are formed on the outer surface of the second side 74 (that is, the right
  • the elongated hole on the side) is used to restrict the second side fitting 764 from pivoting therein and moving in a substantially vertical direction.
  • the longitudinal spring 54b is arranged between the second side fitting piece 764 and the bottom wall of the lower housing 9024, so that the second side fitting piece 764 has a tendency to move upward, even if the connecting rod 760 has a tendency to rotate upwards around the connecting rod cross portion 760a .
  • FIG. 13 and 14 show the floor brush assembly 9 when the rear support wheel 94 is kept in a high position, and the height adjuster 942 is not operated but kept in an unactivated state. At this time, the floor brush assembly 9 is in the first working state.
  • the transverse spring 52 and the longitudinal spring 54a are in a non-compressed state, the slider 78 is in the forward position, the first side fitting 762 is in the upper position, and the first side operation key 722 is in the upper position.
  • the lower side of the convex portion 7624 of the first side fitting piece is matched with the front part of the inclined surface 7842 of the sliding block, and the lower end of the inclined surface 7222 of the first operating key is matched with the rear part of the inclined surface 7842 of the sliding block.
  • the longitudinal spring 54b is in a non-compressed state, and the second side fitting 764 is in the upper position.
  • the second operating key inclined surface 7422 is engaged with the upper surface of the convex portion 7644 of the second side fitting member.
  • the slider 78 Due to the cooperation between the lower surface of the convex portion 7624 of the first side fitting member and the inclined surface 7842 of the slider, during the downward movement of the first side fitting member 762, the slider 78 is first pushed back while compressing the transverse spring 52 until The convex portion 7624 of the first side fitting member can move from above the inclined surface 7842 of the slider to the position of the concave portion 7844 of the slider.
  • the slider 78 returns to the front position under the elastic force of the transverse spring 52 to return to its original state.
  • the first side fitting member 762 can be stably maintained in the lower position, and due to the action of the connecting rod 760, the second side fitting member 764 can also be stably maintained in the lower position. That is, the rear support wheel 94 is stably maintained in a low position, and the ground brush assembly 9 is in the second working state at this time.
  • the first side mating member 762 returns to the upper position under the elastic force of the longitudinal spring 54a and the second side mating member 764 to return to its original shape.
  • the downward force applied to the first side operation key 722 is cancelled, and the slider 78 returns to the front position under the elastic force of the transverse spring 52 to return to its original state.
  • the first side operation key 722 returns to the upper position due to the left and right sides of the slider slope 7842, and the second side operation key 742 also returns to the upper position due to the action of the second side mating member 7644. Accordingly, in this process,
  • the rod 760 rotates upward around the connecting rod cross portion 760a. At this time, the floor brush assembly 9 is stably maintained in the first working state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Suction Cleaners (AREA)
  • Cleaning In General (AREA)

Abstract

La présente invention concerne un ensemble brosses de plancher comprenant un corps de brosses de plancher qui est pourvu successivement sur celui-ci de l'avant à l'arrière d'une roue de support avant, d'une brosse à rouleau avant, d'une brosse à rouleau arrière et d'une roue de support arrière ; l'ensemble brosses de plancher est construit pour comporter un premier état de travail et un second état de travail appropriés aux différentes surfaces à nettoyer ; lorsque l'ensemble brosses se situe dans le premier état de travail, la roue de support avant et la roue de support arrière à l'état de niveau élevé sont supportées sur la surface d'une première surface à nettoyer, et lorsqu'il se situe dans le second état de travail, la roue de support avant atteint la seconde surface à nettoyer, et la roue de support arrière à un état de niveau bas est supportée par la surface de la seconde surface à nettoyer ; la différence entre la distance entre la brosse à rouleau arrière dans le premier état de travail et la surface de la première surface à nettoyer et la distance entre la brosse à rouleau arrière dans le second état de travail et la surface de la seconde surface à nettoyer n'étant pas supérieure à 1/50 ème du rayon de la brosse à rouleaux arrière. La présente invention concerne en outre un aspirateur. La présente invention permet non seulement de réduire les coûts de moteur de la brosse à rouleau arrière, mais également de garantir l'herméticité à proximité d'une ouverture d'aspiration.
PCT/CN2019/121511 2018-11-23 2019-11-28 Ensemble brosses de plancher et aspirateur WO2020147431A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201811409608 2018-11-23
CN201910043013.XA CN109602330A (zh) 2018-11-23 2019-01-17 地刷组件及吸尘器
CN201910043013.X 2019-01-17

Publications (1)

Publication Number Publication Date
WO2020147431A1 true WO2020147431A1 (fr) 2020-07-23

Family

ID=66019861

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/121511 WO2020147431A1 (fr) 2018-11-23 2019-11-28 Ensemble brosses de plancher et aspirateur

Country Status (2)

Country Link
CN (2) CN109602330A (fr)
WO (1) WO2020147431A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2607328A (en) * 2021-06-03 2022-12-07 Techtronic Cordless Gp Floor cleaning head for a suction cleaner
WO2023117042A1 (fr) 2021-12-20 2023-06-29 Aktiebolaget Electrolux Embout et aspirateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109602330A (zh) * 2018-11-23 2019-04-12 天佑电器（苏州）有限公司 地刷组件及吸尘器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2420171A1 (fr) * 2010-08-20 2012-02-22 LG Electronics, Inc. Appareil de nettoyage
CN104068792A (zh) * 2013-03-26 2014-10-01 科沃斯机器人科技(苏州)有限公司 吸尘器地刷及其吸尘器
CN106821144A (zh) * 2015-09-21 2017-06-13 戴森技术有限公司 清洁头
CN206534590U (zh) * 2016-11-17 2017-10-03 苏州宝时得电动工具有限公司 滚刷结构及吸尘器
CN108968800A (zh) * 2018-08-16 2018-12-11 天佑电器（苏州）有限公司 吸尘地刷及具有其的吸尘器
CN109602330A (zh) * 2018-11-23 2019-04-12 天佑电器（苏州）有限公司 地刷组件及吸尘器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2420171A1 (fr) * 2010-08-20 2012-02-22 LG Electronics, Inc. Appareil de nettoyage
CN104068792A (zh) * 2013-03-26 2014-10-01 科沃斯机器人科技(苏州)有限公司 吸尘器地刷及其吸尘器
CN106821144A (zh) * 2015-09-21 2017-06-13 戴森技术有限公司 清洁头
CN206534590U (zh) * 2016-11-17 2017-10-03 苏州宝时得电动工具有限公司 滚刷结构及吸尘器
CN108968800A (zh) * 2018-08-16 2018-12-11 天佑电器（苏州）有限公司 吸尘地刷及具有其的吸尘器
CN109602330A (zh) * 2018-11-23 2019-04-12 天佑电器（苏州）有限公司 地刷组件及吸尘器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2607328A (en) * 2021-06-03 2022-12-07 Techtronic Cordless Gp Floor cleaning head for a suction cleaner
WO2022254196A1 (fr) * 2021-06-03 2022-12-08 Techtronic Cordless Gp Tête de nettoyage de sol pour un aspirateur
WO2023117042A1 (fr) 2021-12-20 2023-06-29 Aktiebolaget Electrolux Embout et aspirateur

Also Published As

Publication number Publication date
CN109602330A (zh) 2019-04-12
CN210204601U (zh) 2020-03-31

Similar Documents

Publication Publication Date Title
WO2020147431A1 (fr) Ensemble brosses de plancher et aspirateur
US6918156B2 (en) Suction brush assembly having rotation roller for sweeping dust
CA2446011C (fr) Outil d'aspiration de plancher pour aspirateurs electriques
AU2008200517B2 (en) Nozzle assembly of vacuum cleaner
US7069620B2 (en) Floor tool
WO2002069775A3 (fr) Appareil de balayage
CA2387943C (fr) Brosse d'aspirateur a vadrouille
JP4530940B2 (ja) 掃除機用アタッチメント
JP3661216B2 (ja) 電気掃除機用吸込具並びに電気掃除機
JP3047555B2 (ja) 掃除機の床ノズル及び自走式掃除機
KR100840058B1 (ko) 청소기용 어태치먼트
AU2002300786A1 (en) Upright Type Vacuum Cleaner
AU766704B2 (en) Suction hose assembly for an upright type vaccum cleaner
CN210300848U (zh) 吸尘器吸嘴以及包括其的家用吸尘器
WO2020211337A1 (fr) Outil de nettoyage
JP2005177124A (ja) ふとん用吸込具
JP3970155B2 (ja) 床用吸込具
CN217365642U (zh) 一种旋转体能直立锁定的地刷
JP2005110908A (ja) 電気掃除機用吸込み具及びそれを用いた電気掃除機
KR200242788Y1 (ko) 진공청소기의 흡입구
JPS6032457B2 (ja) 電気掃除機の床用吸口
JPH0444731A (ja) 電気掃除機の吸口
JP2004141537A (ja) 床用吸込具
JPS642673Y2 (fr)
CN111685646A (zh) 地刷

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19910811

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19910811

Country of ref document: EP

Kind code of ref document: A1